DLNA Media renderer and radio browser two senders same time

Hello,
i have two arylic a30+ for music in my house. Both are added through DLNA media renderer integration.

Play and pause will be triggered through an external knx presence detection.
The problem is, that one device seems to play two radio senders at the same time. the first a litte bit quieter, and a few seconds later the correct sender.
I have no idea, whats going wrong here.
The media source is configured through radio browser integration.
Is this known, or what are the first steps to troubleshoot this issue?

If i start streaming directly on the arylic web interface, its fine.
Its also interesting, that sometimes the streaming through home assistant is also working fine, but most of the time, its not.